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nil detection in Go
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The compiler is pointing the error to you, you're comparing a structure instance and nil. They're not of the same type so it considers it as an invalid comparison and yells at you.
What you want to do here is to compare a pointer to your config instance to...
How do I detect if I am in release or debug mode?
How can I detect in my code that I am in Release mode or Debug mode?
7 Answers
7
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How would I extract a single file (or changes to a file) from a git stash?
I'd like to know if it is possible to extract a single file or diff of a file from a git stash without popping the stash changeset off.
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Check if a string matches a regex in Bash script
One of the arguments that my script receives is a date in the following format: yyyymmdd .
5 Answers
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C++ Convert string (or char*) to wstring (or wchar_t*)
...UTF-8 encoded (which it isn't, by the looks of it, but let's assume it is for the sake of this explanation :-)) representation of a Unicode string of your interest, then your problem can be fully solved with the standard library (C++11 and newer) alone.
The TL;DR version:
#include <locale>
#...
How can I declare and use Boolean variables in a shell script?
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Revised Answer (Feb 12, 2014)
the_world_is_flat=true
# ...do something interesting...
if [ "$the_world_is_flat" = true ] ; then
echo 'Be careful not to fall off!'
fi
Original Answer
Caveats: https://stackoverflow.com/a/21210966/89391
the_world_is_fla...
HTML 5 strange img always adds 3px margin at bottom [duplicate]
...r of text (and so leaving a space below it where the hanging part of a "y" or "g" would go), and is solved by using the vertical-align CSS property to indicate that no such space is needed. Almost any value of vertical-align will do; I'm fond of middle, personally.
img {
vertical-align: middle...
How do I declare and initialize an array in Java?
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You can either use array declaration or array literal (but only when you declare and affect the variable right away, array literals cannot be used for re-assigning an array).
For primitive types:
int[] myIntArray = new int[3];
int[] myIntArray = {1, 2, 3};
i...
Convert Java Array to Iterable
I have an Array of primitives, for example for int, int[] foo. It might be a small sized one, or not.
10 Answers
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Where to use EJB 3.1 and CDI?
...unds like you are using @WebService and @Schedule, which are good reasons for adding EJB to the mix.
There's a lot of confusion out there, so here is some general information on EJB and CDI as they relate to each together.
EJB >= CDI
Note that EJBs are CDI beans and therefore have all the bene...